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(en )
1954-11-23
Printing calculator mechanism
GB301396A
(https= )
US2361002A
(en )
1944-10-24
Computing machine
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(en )
1941-07-01
Calculating machine
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(en )
1947-12-02
Selective printing and punching machine
US2780407A
(en )
1957-02-05
Carriage control means for listing calculators
US2581624A
(en )
1952-01-08
Early factor mechanism
US2992773A
(en )
1961-07-18
Multiplication mechanism for adding machines
US2459441A
(en )
1949-01-18
Computing machine
US1939804A
(en )
1933-12-19
Combined adding machine and typewriter
US1773026A
(en )
1930-08-12
For calculators
US2254760A
(en )
1941-09-02
Computing and printing machine
US2987243A
(en )
1961-06-06
Read-in decoding translator for lister calculators
US2749033A
(en )
1956-06-05
Latour
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1950-08-22
Accounting machine
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1968-02-27
Program control device for a calculating or like machine
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(en )
1969-06-24
Ten key multiplying machine
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1968-03-26
Computer for multiplication with abbreviated,continual addition or subtraction
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1936-07-07
Calculating machine
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1962-09-11
Heise
GB191109563A
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1912-06-19
Improvements in and relating to Multiplying Arrangements for Calculating Machines.
GB721535A
(https= )
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(en )
1940-12-17
Combined typewriting and computing machine
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1912-07-02
Calculating-machine.
GB686524A
(https= )